Annotation of src/usr.bin/ssh/servconf.c, Revision 1.51
1.1 deraadt 1: /*
1.26 deraadt 2: * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
3: * All rights reserved
1.34 markus 4: *
1.51 ! deraadt 5: * As far as I am concerned, the code I have written for this software
! 6: * can be used freely for any purpose. Any derived versions of this
! 7: * software must be clearly marked as such, and if the derived work is
! 8: * incompatible with the protocol description in the RFC file, it must be
! 9: * called by a name other than "ssh" or "Secure Shell".
1.26 deraadt 10: */
1.1 deraadt 11:
12: #include "includes.h"
1.51 ! deraadt 13: RCSID("$OpenBSD: servconf.c,v 1.50 2000/07/22 09:14:36 markus Exp $");
1.1 deraadt 14:
15: #include "ssh.h"
16: #include "servconf.h"
17: #include "xmalloc.h"
1.33 markus 18: #include "compat.h"
1.1 deraadt 19:
1.29 markus 20: /* add listen address */
21: void add_listen_addr(ServerOptions *options, char *addr);
22:
1.1 deraadt 23: /* Initializes the server options to their default values. */
24:
1.34 markus 25: void
1.25 markus 26: initialize_server_options(ServerOptions *options)
1.1 deraadt 27: {
1.25 markus 28: memset(options, 0, sizeof(*options));
1.29 markus 29: options->num_ports = 0;
30: options->ports_from_cmdline = 0;
31: options->listen_addrs = NULL;
1.25 markus 32: options->host_key_file = NULL;
1.37 markus 33: options->host_dsa_key_file = NULL;
1.36 markus 34: options->pid_file = NULL;
1.25 markus 35: options->server_key_bits = -1;
36: options->login_grace_time = -1;
37: options->key_regeneration_time = -1;
38: options->permit_root_login = -1;
39: options->ignore_rhosts = -1;
40: options->ignore_user_known_hosts = -1;
41: options->print_motd = -1;
42: options->check_mail = -1;
43: options->x11_forwarding = -1;
44: options->x11_display_offset = -1;
1.42 markus 45: options->xauth_location = NULL;
1.25 markus 46: options->strict_modes = -1;
47: options->keepalives = -1;
48: options->log_facility = (SyslogFacility) - 1;
49: options->log_level = (LogLevel) - 1;
50: options->rhosts_authentication = -1;
51: options->rhosts_rsa_authentication = -1;
52: options->rsa_authentication = -1;
1.39 markus 53: options->dsa_authentication = -1;
1.1 deraadt 54: #ifdef KRB4
1.25 markus 55: options->kerberos_authentication = -1;
56: options->kerberos_or_local_passwd = -1;
57: options->kerberos_ticket_cleanup = -1;
1.1 deraadt 58: #endif
1.4 dugsong 59: #ifdef AFS
1.25 markus 60: options->kerberos_tgt_passing = -1;
61: options->afs_token_passing = -1;
1.1 deraadt 62: #endif
1.25 markus 63: options->password_authentication = -1;
1.10 markus 64: #ifdef SKEY
1.25 markus 65: options->skey_authentication = -1;
1.10 markus 66: #endif
1.25 markus 67: options->permit_empty_passwd = -1;
68: options->use_login = -1;
69: options->num_allow_users = 0;
70: options->num_deny_users = 0;
71: options->num_allow_groups = 0;
72: options->num_deny_groups = 0;
1.33 markus 73: options->ciphers = NULL;
74: options->protocol = SSH_PROTO_UNKNOWN;
1.38 markus 75: options->gateway_ports = -1;
1.43 jakob 76: options->num_subsystems = 0;
1.50 markus 77: options->max_startups_begin = -1;
78: options->max_startups_rate = -1;
1.46 markus 79: options->max_startups = -1;
1.1 deraadt 80: }
81:
1.34 markus 82: void
1.25 markus 83: fill_default_server_options(ServerOptions *options)
1.1 deraadt 84: {
1.29 markus 85: if (options->num_ports == 0)
86: options->ports[options->num_ports++] = SSH_DEFAULT_PORT;
87: if (options->listen_addrs == NULL)
88: add_listen_addr(options, NULL);
1.25 markus 89: if (options->host_key_file == NULL)
90: options->host_key_file = HOST_KEY_FILE;
1.37 markus 91: if (options->host_dsa_key_file == NULL)
92: options->host_dsa_key_file = HOST_DSA_KEY_FILE;
1.36 markus 93: if (options->pid_file == NULL)
94: options->pid_file = SSH_DAEMON_PID_FILE;
1.25 markus 95: if (options->server_key_bits == -1)
96: options->server_key_bits = 768;
97: if (options->login_grace_time == -1)
98: options->login_grace_time = 600;
99: if (options->key_regeneration_time == -1)
100: options->key_regeneration_time = 3600;
101: if (options->permit_root_login == -1)
102: options->permit_root_login = 1; /* yes */
103: if (options->ignore_rhosts == -1)
1.30 markus 104: options->ignore_rhosts = 1;
1.25 markus 105: if (options->ignore_user_known_hosts == -1)
106: options->ignore_user_known_hosts = 0;
107: if (options->check_mail == -1)
108: options->check_mail = 0;
109: if (options->print_motd == -1)
110: options->print_motd = 1;
111: if (options->x11_forwarding == -1)
1.30 markus 112: options->x11_forwarding = 0;
1.25 markus 113: if (options->x11_display_offset == -1)
1.30 markus 114: options->x11_display_offset = 10;
1.42 markus 115: #ifdef XAUTH_PATH
116: if (options->xauth_location == NULL)
117: options->xauth_location = XAUTH_PATH;
118: #endif /* XAUTH_PATH */
1.25 markus 119: if (options->strict_modes == -1)
120: options->strict_modes = 1;
121: if (options->keepalives == -1)
122: options->keepalives = 1;
123: if (options->log_facility == (SyslogFacility) (-1))
124: options->log_facility = SYSLOG_FACILITY_AUTH;
125: if (options->log_level == (LogLevel) (-1))
126: options->log_level = SYSLOG_LEVEL_INFO;
127: if (options->rhosts_authentication == -1)
128: options->rhosts_authentication = 0;
129: if (options->rhosts_rsa_authentication == -1)
1.30 markus 130: options->rhosts_rsa_authentication = 0;
1.25 markus 131: if (options->rsa_authentication == -1)
132: options->rsa_authentication = 1;
1.39 markus 133: if (options->dsa_authentication == -1)
134: options->dsa_authentication = 1;
1.1 deraadt 135: #ifdef KRB4
1.25 markus 136: if (options->kerberos_authentication == -1)
137: options->kerberos_authentication = (access(KEYFILE, R_OK) == 0);
138: if (options->kerberos_or_local_passwd == -1)
139: options->kerberos_or_local_passwd = 1;
140: if (options->kerberos_ticket_cleanup == -1)
141: options->kerberos_ticket_cleanup = 1;
1.4 dugsong 142: #endif /* KRB4 */
143: #ifdef AFS
1.25 markus 144: if (options->kerberos_tgt_passing == -1)
145: options->kerberos_tgt_passing = 0;
146: if (options->afs_token_passing == -1)
147: options->afs_token_passing = k_hasafs();
1.4 dugsong 148: #endif /* AFS */
1.25 markus 149: if (options->password_authentication == -1)
150: options->password_authentication = 1;
1.10 markus 151: #ifdef SKEY
1.25 markus 152: if (options->skey_authentication == -1)
153: options->skey_authentication = 1;
1.10 markus 154: #endif
1.25 markus 155: if (options->permit_empty_passwd == -1)
1.30 markus 156: options->permit_empty_passwd = 0;
1.25 markus 157: if (options->use_login == -1)
158: options->use_login = 0;
1.33 markus 159: if (options->protocol == SSH_PROTO_UNKNOWN)
1.35 markus 160: options->protocol = SSH_PROTO_1|SSH_PROTO_2;
1.38 markus 161: if (options->gateway_ports == -1)
162: options->gateway_ports = 0;
1.46 markus 163: if (options->max_startups == -1)
164: options->max_startups = 10;
1.50 markus 165: if (options->max_startups_rate == -1)
166: options->max_startups_rate = 100; /* 100% */
167: if (options->max_startups_begin == -1)
168: options->max_startups_begin = options->max_startups;
1.1 deraadt 169: }
170:
171: /* Keyword tokens. */
1.25 markus 172: typedef enum {
173: sBadOption, /* == unknown option */
174: sPort, sHostKeyFile, sServerKeyBits, sLoginGraceTime, sKeyRegenerationTime,
175: sPermitRootLogin, sLogFacility, sLogLevel,
176: sRhostsAuthentication, sRhostsRSAAuthentication, sRSAAuthentication,
1.1 deraadt 177: #ifdef KRB4
1.25 markus 178: sKerberosAuthentication, sKerberosOrLocalPasswd, sKerberosTicketCleanup,
1.1 deraadt 179: #endif
180: #ifdef AFS
1.25 markus 181: sKerberosTgtPassing, sAFSTokenPassing,
1.1 deraadt 182: #endif
1.10 markus 183: #ifdef SKEY
1.25 markus 184: sSkeyAuthentication,
1.10 markus 185: #endif
1.25 markus 186: sPasswordAuthentication, sListenAddress,
187: sPrintMotd, sIgnoreRhosts, sX11Forwarding, sX11DisplayOffset,
188: sStrictModes, sEmptyPasswd, sRandomSeedFile, sKeepAlives, sCheckMail,
189: sUseLogin, sAllowUsers, sDenyUsers, sAllowGroups, sDenyGroups,
1.38 markus 190: sIgnoreUserKnownHosts, sHostDSAKeyFile, sCiphers, sProtocol, sPidFile,
1.46 markus 191: sGatewayPorts, sDSAAuthentication, sXAuthLocation, sSubsystem, sMaxStartups
1.1 deraadt 192: } ServerOpCodes;
193:
194: /* Textual representation of the tokens. */
1.25 markus 195: static struct {
196: const char *name;
197: ServerOpCodes opcode;
198: } keywords[] = {
199: { "port", sPort },
200: { "hostkey", sHostKeyFile },
1.37 markus 201: { "hostdsakey", sHostDSAKeyFile },
1.36 markus 202: { "pidfile", sPidFile },
1.25 markus 203: { "serverkeybits", sServerKeyBits },
204: { "logingracetime", sLoginGraceTime },
205: { "keyregenerationinterval", sKeyRegenerationTime },
206: { "permitrootlogin", sPermitRootLogin },
207: { "syslogfacility", sLogFacility },
208: { "loglevel", sLogLevel },
209: { "rhostsauthentication", sRhostsAuthentication },
210: { "rhostsrsaauthentication", sRhostsRSAAuthentication },
211: { "rsaauthentication", sRSAAuthentication },
1.39 markus 212: { "dsaauthentication", sDSAAuthentication },
1.1 deraadt 213: #ifdef KRB4
1.25 markus 214: { "kerberosauthentication", sKerberosAuthentication },
215: { "kerberosorlocalpasswd", sKerberosOrLocalPasswd },
216: { "kerberosticketcleanup", sKerberosTicketCleanup },
1.1 deraadt 217: #endif
1.4 dugsong 218: #ifdef AFS
1.25 markus 219: { "kerberostgtpassing", sKerberosTgtPassing },
220: { "afstokenpassing", sAFSTokenPassing },
1.1 deraadt 221: #endif
1.25 markus 222: { "passwordauthentication", sPasswordAuthentication },
1.10 markus 223: #ifdef SKEY
1.25 markus 224: { "skeyauthentication", sSkeyAuthentication },
1.10 markus 225: #endif
1.25 markus 226: { "checkmail", sCheckMail },
227: { "listenaddress", sListenAddress },
228: { "printmotd", sPrintMotd },
229: { "ignorerhosts", sIgnoreRhosts },
230: { "ignoreuserknownhosts", sIgnoreUserKnownHosts },
231: { "x11forwarding", sX11Forwarding },
232: { "x11displayoffset", sX11DisplayOffset },
1.42 markus 233: { "xauthlocation", sXAuthLocation },
1.25 markus 234: { "strictmodes", sStrictModes },
235: { "permitemptypasswords", sEmptyPasswd },
236: { "uselogin", sUseLogin },
237: { "randomseed", sRandomSeedFile },
238: { "keepalive", sKeepAlives },
239: { "allowusers", sAllowUsers },
240: { "denyusers", sDenyUsers },
241: { "allowgroups", sAllowGroups },
242: { "denygroups", sDenyGroups },
1.33 markus 243: { "ciphers", sCiphers },
244: { "protocol", sProtocol },
1.38 markus 245: { "gatewayports", sGatewayPorts },
1.43 jakob 246: { "subsystem", sSubsystem },
1.46 markus 247: { "maxstartups", sMaxStartups },
1.25 markus 248: { NULL, 0 }
1.1 deraadt 249: };
250:
1.27 markus 251: /*
252: * Returns the number of the token pointed to by cp of length len. Never
253: * returns if the token is not known.
254: */
1.1 deraadt 255:
1.34 markus 256: static ServerOpCodes
1.25 markus 257: parse_token(const char *cp, const char *filename,
258: int linenum)
1.1 deraadt 259: {
1.25 markus 260: unsigned int i;
1.1 deraadt 261:
1.25 markus 262: for (i = 0; keywords[i].name; i++)
1.28 markus 263: if (strcasecmp(cp, keywords[i].name) == 0)
1.25 markus 264: return keywords[i].opcode;
265:
266: fprintf(stderr, "%s: line %d: Bad configuration option: %s\n",
267: filename, linenum, cp);
268: return sBadOption;
1.1 deraadt 269: }
270:
1.29 markus 271: /*
272: * add listen address
273: */
1.34 markus 274: void
1.29 markus 275: add_listen_addr(ServerOptions *options, char *addr)
276: {
277: extern int IPv4or6;
278: struct addrinfo hints, *ai, *aitop;
279: char strport[NI_MAXSERV];
280: int gaierr;
281: int i;
282:
283: if (options->num_ports == 0)
284: options->ports[options->num_ports++] = SSH_DEFAULT_PORT;
285: for (i = 0; i < options->num_ports; i++) {
286: memset(&hints, 0, sizeof(hints));
287: hints.ai_family = IPv4or6;
288: hints.ai_socktype = SOCK_STREAM;
289: hints.ai_flags = (addr == NULL) ? AI_PASSIVE : 0;
290: snprintf(strport, sizeof strport, "%d", options->ports[i]);
291: if ((gaierr = getaddrinfo(addr, strport, &hints, &aitop)) != 0)
292: fatal("bad addr or host: %s (%s)\n",
293: addr ? addr : "<NULL>",
294: gai_strerror(gaierr));
295: for (ai = aitop; ai->ai_next; ai = ai->ai_next)
296: ;
297: ai->ai_next = options->listen_addrs;
298: options->listen_addrs = aitop;
299: }
300: }
301:
1.1 deraadt 302: /* Reads the server configuration file. */
303:
1.34 markus 304: void
1.25 markus 305: read_server_config(ServerOptions *options, const char *filename)
1.1 deraadt 306: {
1.25 markus 307: FILE *f;
308: char line[1024];
1.47 ho 309: char *cp, **charptr, *arg;
1.25 markus 310: int linenum, *intptr, value;
311: int bad_options = 0;
312: ServerOpCodes opcode;
1.43 jakob 313: int i;
1.25 markus 314:
315: f = fopen(filename, "r");
316: if (!f) {
317: perror(filename);
1.1 deraadt 318: exit(1);
1.25 markus 319: }
320: linenum = 0;
321: while (fgets(line, sizeof(line), f)) {
322: linenum++;
1.48 provos 323: cp = line;
324: arg = strdelim(&cp);
325: /* Ignore leading whitespace */
326: if (*arg == '\0')
1.49 markus 327: arg = strdelim(&cp);
1.48 provos 328: if (!*arg || *arg == '#')
1.25 markus 329: continue;
1.47 ho 330: opcode = parse_token(arg, filename, linenum);
1.25 markus 331: switch (opcode) {
332: case sBadOption:
333: bad_options++;
334: continue;
335: case sPort:
1.29 markus 336: /* ignore ports from configfile if cmdline specifies ports */
337: if (options->ports_from_cmdline)
338: continue;
339: if (options->listen_addrs != NULL)
340: fatal("%s line %d: ports must be specified before "
341: "ListenAdress.\n", filename, linenum);
342: if (options->num_ports >= MAX_PORTS)
343: fatal("%s line %d: too many ports.\n",
1.34 markus 344: filename, linenum);
1.48 provos 345: arg = strdelim(&cp);
1.47 ho 346: if (!arg || *arg == '\0')
1.29 markus 347: fatal("%s line %d: missing port number.\n",
348: filename, linenum);
1.47 ho 349: options->ports[options->num_ports++] = atoi(arg);
1.29 markus 350: break;
351:
352: case sServerKeyBits:
353: intptr = &options->server_key_bits;
1.25 markus 354: parse_int:
1.48 provos 355: arg = strdelim(&cp);
1.47 ho 356: if (!arg || *arg == '\0') {
1.25 markus 357: fprintf(stderr, "%s line %d: missing integer value.\n",
358: filename, linenum);
359: exit(1);
360: }
1.47 ho 361: value = atoi(arg);
1.25 markus 362: if (*intptr == -1)
363: *intptr = value;
364: break;
365:
366: case sLoginGraceTime:
367: intptr = &options->login_grace_time;
368: goto parse_int;
369:
370: case sKeyRegenerationTime:
371: intptr = &options->key_regeneration_time;
372: goto parse_int;
373:
374: case sListenAddress:
1.48 provos 375: arg = strdelim(&cp);
1.47 ho 376: if (!arg || *arg == '\0')
1.29 markus 377: fatal("%s line %d: missing inet addr.\n",
378: filename, linenum);
1.47 ho 379: add_listen_addr(options, arg);
1.25 markus 380: break;
381:
382: case sHostKeyFile:
1.37 markus 383: case sHostDSAKeyFile:
1.32 markus 384: charptr = (opcode == sHostKeyFile ) ?
1.37 markus 385: &options->host_key_file : &options->host_dsa_key_file;
1.42 markus 386: parse_filename:
1.48 provos 387: arg = strdelim(&cp);
1.47 ho 388: if (!arg || *arg == '\0') {
1.25 markus 389: fprintf(stderr, "%s line %d: missing file name.\n",
1.36 markus 390: filename, linenum);
391: exit(1);
392: }
393: if (*charptr == NULL)
1.47 ho 394: *charptr = tilde_expand_filename(arg, getuid());
1.36 markus 395: break;
396:
397: case sPidFile:
398: charptr = &options->pid_file;
1.42 markus 399: goto parse_filename;
1.25 markus 400:
401: case sRandomSeedFile:
402: fprintf(stderr, "%s line %d: \"randomseed\" option is obsolete.\n",
403: filename, linenum);
1.48 provos 404: arg = strdelim(&cp);
1.25 markus 405: break;
406:
407: case sPermitRootLogin:
408: intptr = &options->permit_root_login;
1.48 provos 409: arg = strdelim(&cp);
1.47 ho 410: if (!arg || *arg == '\0') {
1.25 markus 411: fprintf(stderr, "%s line %d: missing yes/without-password/no argument.\n",
412: filename, linenum);
413: exit(1);
414: }
1.47 ho 415: if (strcmp(arg, "without-password") == 0)
1.25 markus 416: value = 2;
1.47 ho 417: else if (strcmp(arg, "yes") == 0)
1.25 markus 418: value = 1;
1.47 ho 419: else if (strcmp(arg, "no") == 0)
1.25 markus 420: value = 0;
421: else {
422: fprintf(stderr, "%s line %d: Bad yes/without-password/no argument: %s\n",
1.47 ho 423: filename, linenum, arg);
1.25 markus 424: exit(1);
425: }
426: if (*intptr == -1)
427: *intptr = value;
428: break;
429:
430: case sIgnoreRhosts:
431: intptr = &options->ignore_rhosts;
432: parse_flag:
1.48 provos 433: arg = strdelim(&cp);
1.47 ho 434: if (!arg || *arg == '\0') {
1.25 markus 435: fprintf(stderr, "%s line %d: missing yes/no argument.\n",
436: filename, linenum);
437: exit(1);
438: }
1.47 ho 439: if (strcmp(arg, "yes") == 0)
1.25 markus 440: value = 1;
1.47 ho 441: else if (strcmp(arg, "no") == 0)
1.25 markus 442: value = 0;
443: else {
444: fprintf(stderr, "%s line %d: Bad yes/no argument: %s\n",
1.47 ho 445: filename, linenum, arg);
1.25 markus 446: exit(1);
447: }
448: if (*intptr == -1)
449: *intptr = value;
450: break;
451:
452: case sIgnoreUserKnownHosts:
453: intptr = &options->ignore_user_known_hosts;
1.31 markus 454: goto parse_flag;
1.25 markus 455:
456: case sRhostsAuthentication:
457: intptr = &options->rhosts_authentication;
458: goto parse_flag;
459:
460: case sRhostsRSAAuthentication:
461: intptr = &options->rhosts_rsa_authentication;
462: goto parse_flag;
463:
464: case sRSAAuthentication:
465: intptr = &options->rsa_authentication;
1.39 markus 466: goto parse_flag;
467:
468: case sDSAAuthentication:
469: intptr = &options->dsa_authentication;
1.25 markus 470: goto parse_flag;
471:
1.1 deraadt 472: #ifdef KRB4
1.25 markus 473: case sKerberosAuthentication:
474: intptr = &options->kerberos_authentication;
475: goto parse_flag;
476:
477: case sKerberosOrLocalPasswd:
478: intptr = &options->kerberos_or_local_passwd;
479: goto parse_flag;
480:
481: case sKerberosTicketCleanup:
482: intptr = &options->kerberos_ticket_cleanup;
483: goto parse_flag;
1.1 deraadt 484: #endif
1.25 markus 485:
1.4 dugsong 486: #ifdef AFS
1.25 markus 487: case sKerberosTgtPassing:
488: intptr = &options->kerberos_tgt_passing;
489: goto parse_flag;
490:
491: case sAFSTokenPassing:
492: intptr = &options->afs_token_passing;
493: goto parse_flag;
494: #endif
495:
496: case sPasswordAuthentication:
497: intptr = &options->password_authentication;
498: goto parse_flag;
499:
500: case sCheckMail:
501: intptr = &options->check_mail;
502: goto parse_flag;
1.10 markus 503:
504: #ifdef SKEY
1.25 markus 505: case sSkeyAuthentication:
506: intptr = &options->skey_authentication;
507: goto parse_flag;
508: #endif
509:
510: case sPrintMotd:
511: intptr = &options->print_motd;
512: goto parse_flag;
513:
514: case sX11Forwarding:
515: intptr = &options->x11_forwarding;
516: goto parse_flag;
517:
518: case sX11DisplayOffset:
519: intptr = &options->x11_display_offset;
520: goto parse_int;
521:
1.42 markus 522: case sXAuthLocation:
523: charptr = &options->xauth_location;
524: goto parse_filename;
525:
1.25 markus 526: case sStrictModes:
527: intptr = &options->strict_modes;
528: goto parse_flag;
529:
530: case sKeepAlives:
531: intptr = &options->keepalives;
532: goto parse_flag;
533:
534: case sEmptyPasswd:
535: intptr = &options->permit_empty_passwd;
536: goto parse_flag;
537:
538: case sUseLogin:
539: intptr = &options->use_login;
1.38 markus 540: goto parse_flag;
541:
542: case sGatewayPorts:
543: intptr = &options->gateway_ports;
1.25 markus 544: goto parse_flag;
545:
546: case sLogFacility:
547: intptr = (int *) &options->log_facility;
1.48 provos 548: arg = strdelim(&cp);
1.47 ho 549: value = log_facility_number(arg);
1.25 markus 550: if (value == (SyslogFacility) - 1)
551: fatal("%.200s line %d: unsupported log facility '%s'\n",
1.47 ho 552: filename, linenum, arg ? arg : "<NONE>");
1.25 markus 553: if (*intptr == -1)
554: *intptr = (SyslogFacility) value;
555: break;
556:
557: case sLogLevel:
558: intptr = (int *) &options->log_level;
1.48 provos 559: arg = strdelim(&cp);
1.47 ho 560: value = log_level_number(arg);
1.25 markus 561: if (value == (LogLevel) - 1)
562: fatal("%.200s line %d: unsupported log level '%s'\n",
1.47 ho 563: filename, linenum, arg ? arg : "<NONE>");
1.25 markus 564: if (*intptr == -1)
565: *intptr = (LogLevel) value;
566: break;
567:
568: case sAllowUsers:
1.48 provos 569: while ((arg = strdelim(&cp)) && *arg != '\0') {
1.33 markus 570: if (options->num_allow_users >= MAX_ALLOW_USERS)
571: fatal("%s line %d: too many allow users.\n",
572: filename, linenum);
1.47 ho 573: options->allow_users[options->num_allow_users++] = xstrdup(arg);
1.25 markus 574: }
575: break;
576:
577: case sDenyUsers:
1.48 provos 578: while ((arg = strdelim(&cp)) && *arg != '\0') {
1.33 markus 579: if (options->num_deny_users >= MAX_DENY_USERS)
580: fatal( "%s line %d: too many deny users.\n",
581: filename, linenum);
1.47 ho 582: options->deny_users[options->num_deny_users++] = xstrdup(arg);
1.25 markus 583: }
584: break;
585:
586: case sAllowGroups:
1.48 provos 587: while ((arg = strdelim(&cp)) && *arg != '\0') {
1.33 markus 588: if (options->num_allow_groups >= MAX_ALLOW_GROUPS)
589: fatal("%s line %d: too many allow groups.\n",
590: filename, linenum);
1.47 ho 591: options->allow_groups[options->num_allow_groups++] = xstrdup(arg);
1.25 markus 592: }
593: break;
594:
595: case sDenyGroups:
1.48 provos 596: while ((arg = strdelim(&cp)) && *arg != '\0') {
1.33 markus 597: if (options->num_deny_groups >= MAX_DENY_GROUPS)
598: fatal("%s line %d: too many deny groups.\n",
599: filename, linenum);
1.47 ho 600: options->deny_groups[options->num_deny_groups++] = xstrdup(arg);
1.25 markus 601: }
1.33 markus 602: break;
603:
604: case sCiphers:
1.48 provos 605: arg = strdelim(&cp);
1.47 ho 606: if (!arg || *arg == '\0')
1.41 markus 607: fatal("%s line %d: Missing argument.", filename, linenum);
1.47 ho 608: if (!ciphers_valid(arg))
1.40 markus 609: fatal("%s line %d: Bad SSH2 cipher spec '%s'.",
1.47 ho 610: filename, linenum, arg ? arg : "<NONE>");
1.33 markus 611: if (options->ciphers == NULL)
1.47 ho 612: options->ciphers = xstrdup(arg);
1.33 markus 613: break;
614:
615: case sProtocol:
616: intptr = &options->protocol;
1.48 provos 617: arg = strdelim(&cp);
1.47 ho 618: if (!arg || *arg == '\0')
1.41 markus 619: fatal("%s line %d: Missing argument.", filename, linenum);
1.47 ho 620: value = proto_spec(arg);
1.33 markus 621: if (value == SSH_PROTO_UNKNOWN)
622: fatal("%s line %d: Bad protocol spec '%s'.",
1.47 ho 623: filename, linenum, arg ? arg : "<NONE>");
1.33 markus 624: if (*intptr == SSH_PROTO_UNKNOWN)
625: *intptr = value;
1.43 jakob 626: break;
627:
628: case sSubsystem:
629: if(options->num_subsystems >= MAX_SUBSYSTEMS) {
630: fatal("%s line %d: too many subsystems defined.",
631: filename, linenum);
632: }
1.48 provos 633: arg = strdelim(&cp);
1.47 ho 634: if (!arg || *arg == '\0')
1.43 jakob 635: fatal("%s line %d: Missing subsystem name.",
636: filename, linenum);
637: for (i = 0; i < options->num_subsystems; i++)
1.47 ho 638: if(strcmp(arg, options->subsystem_name[i]) == 0)
1.43 jakob 639: fatal("%s line %d: Subsystem '%s' already defined.",
1.47 ho 640: filename, linenum, arg);
641: options->subsystem_name[options->num_subsystems] = xstrdup(arg);
1.48 provos 642: arg = strdelim(&cp);
1.47 ho 643: if (!arg || *arg == '\0')
1.43 jakob 644: fatal("%s line %d: Missing subsystem command.",
645: filename, linenum);
1.47 ho 646: options->subsystem_command[options->num_subsystems] = xstrdup(arg);
1.43 jakob 647: options->num_subsystems++;
1.25 markus 648: break;
1.46 markus 649:
650: case sMaxStartups:
1.50 markus 651: arg = strdelim(&cp);
652: if (!arg || *arg == '\0')
653: fatal("%s line %d: Missing MaxStartups spec.",
654: filename, linenum);
655: if (sscanf(arg, "%d:%d:%d",
656: &options->max_startups_begin,
657: &options->max_startups_rate,
658: &options->max_startups) == 3) {
659: if (options->max_startups_begin >
660: options->max_startups ||
661: options->max_startups_rate > 100 ||
662: options->max_startups_rate < 1)
663: fatal("%s line %d: Illegal MaxStartups spec.",
664: filename, linenum);
665: break;
666: }
1.46 markus 667: intptr = &options->max_startups;
668: goto parse_int;
1.25 markus 669:
670: default:
671: fprintf(stderr, "%s line %d: Missing handler for opcode %s (%d)\n",
1.47 ho 672: filename, linenum, arg, opcode);
1.25 markus 673: exit(1);
1.13 markus 674: }
1.48 provos 675: if ((arg = strdelim(&cp)) != NULL && *arg != '\0') {
1.47 ho 676: fprintf(stderr,
677: "%s line %d: garbage at end of line; \"%.200s\".\n",
678: filename, linenum, arg);
1.25 markus 679: exit(1);
1.13 markus 680: }
1.1 deraadt 681: }
1.25 markus 682: fclose(f);
683: if (bad_options > 0) {
684: fprintf(stderr, "%s: terminating, %d bad configuration options\n",
685: filename, bad_options);
686: exit(1);
1.1 deraadt 687: }
688: }
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